Dear diary,
I am up at midnight again writing this, I had that dream yet again. No matter how many times I tell myself that it is all in the past, I still seem to be stuck on those days. It was the same dream as usual, but this time when the bomb went off not only was Billy inside, but so were mom and dad. I still remember the face he made at me... I think I better try to go back to sleep. Bye

Dear diary,
Today at school, I started having a panic attack, and I do not know what set me off. I was just playing around like usual, when I walked by the path I took that day. I felt like I was being drawn back and I couldn't control myself. I saw Billy run by. I screamed at him to not go but he just kept running down the alley. Lucy started shaking my shoulders. I told her I was just tired and came home. Lately, I have been having a lot of trouble paying attention in class, and nothing seems to be that enjoyable anymore. I guess that is all for now. Bye

Dear diary,
I know it has been a while but I really need to vent. I got really mad at Lucy today,but even though I should be worried I do not even seem to care... everything has just been so annoying lately. The nightmares have gotten worse, I even have daydreams about it. The funny thing is though, that I can't really remember exactly what happens in those dreams. I know something bad is happening, and that is has to do with Billy... but not exactly what. I've been flunking class lately, but it doesn't seem to matter that much now. I can't even pass Billy's locker without smelling the smoke and the ...the..ugh. I SHOULD HAVE TOLD BILLY NOT TO MESS AROUND IN THERE, WHY DIDN'T I STOP HIM I WAS BEING SUCH AN IDIOT, I COULDN'T EVEN PROTECT MY BEST FRIEND. Why didn't I go help him. Why didn't I go with him, then I might have been able to help him. I am such an idiot.

Dear diary,
My teacher made me stay after school, she seemed to be talking about grades and something or another, but that has been happening too much lately, so I just ignored her like normal. It is not l like it matters anyway. I wish people would just leave me alone and stop bothering me. They are just annoying and can't seem to lay off.



Diagnosis
This person, according to the symptoms shown in these diary entries, seems to have an anxiety disorder. More specifically, this person seems to show symptoms of generalized anxiety disorder and panic disorder. For instance, this person is suffering from constant nightmares day and night. Thus, the patient is constantly tense and oversensitive as well. When having these nightmares, the patient maybe does not consciously know it, but is showing symptoms of panic disorder as well.

Also, the person says that they have a hard time paying attention in class. Another symptom of anxiety disorders is that they cannot concentrate. The patient is flunking classes, because they are too fixated upon the dreams that the patient does not remember. He / She is so fixated upon the dreams that the patient cannot even pass by anything that triggers the memory of an old friend, Billy. Therefore, it shows an extreme oversensitivity to this one certain event that occurred and is haunting this patient for perhaps years.

It seems as though this anxiety disorder has been brought about by selective amnesia because the patient does not remember the dreams that he / she has been having for a long period of time. He / She remembers parts of the incident of the past, however, does not seem to remember everything.

Treatment
The anxiety disorder that this patient is suffering from can be treated by medications or therapy. In order to treat Generalized Anxiety Disorder with medications, such as Buspirone. It is usually called Buspar, which is the safest drug for Generalized Anxiety Disorder. However, this drug will not completely eliminate the disorder and will take at least two weeks for the effects. Buspar can increase the amount of food consumption, but the dosage should not change on the amount of eating. Also, while on this prescription, the patient should stay away from drinking juice because it increases the amount of Buspar in the blood system.
Anxiety Disorders such as both Generalized Anxiety Disorder and Panic Disorder can be treated also by therapy. Cognitive-behavioral therapy is a more recommended type of therapy for Generalized Anxiety Disorder. During this therapy, the therapist will identify the thoughts that cause this anxiety. By identifying this thought, the patient can eliminate it.


Bibliography
Smith, Melinda & Jaffe-Gill, Ellen (2008). Generalized Anxiety Disorder (GAD). Retrieved from http://helpguide.org/mental/generalized_anxiety_disorder.htm

Saltiel, Emmanuel (2007). Medications and Drugs. Retrieved from http://www.medicinenet.com/buspirone/article.htm.


If you want to be a little more specific, this is called PTSD, or Post Traumatic Stress Syndrome, which is stress relating to a certain event. Many soldiers get this after coming back from war. The main thing that this person needs ( as you said) is a therapist.